A suicide car bomber targeted a police station in western Kabul on Wednesday, setting off a huge explosion that wounded at least 95 people, Afghan officials said.

Violence is surging across Afghanistan even as the US and the Taliban negotiate a peace deal ahead of elections planned for September 28.

The car bomb exploded near the entrance of a police station in western Kabul around 9:00 am (4:30 am GMT), interior ministry spokesman Nasrat Rahimi said.

Health ministry spokesman Wahidullah Mayar said at least 95 people, mostly civilians and including women and children, had been taken to hospital.

"I heard a big bang and all the windows of my shop broke with glass flying everywhere," shopkeeper Ahmad Saleh told AFP.

"My head is spinning and still I don't know what has happened but the windows of about 20 shops around one kilometre from the blast site are broken."

The Taliban claimed responsibility for the attack.

According to footage on social media and witnesses, small-arms fire could be heard following the blast.